Revolving door.



H. W. DYER.

REVOLVING DOOR.

APPLICATION FILED 1120.4, 1907.

Patented Feb. 18, 1913.

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' FIG 11 A l I I I u I INVENTOR monuev H. W. DYER.

REVOLVING DOOR.

urmomxon FILED mo. 4, 1907.

1,053,483. Patented Feb. 18, 1913.

3 SHEETS-SHEET 2.

-F1G B WITNESSES: INVENTOR d. w @tM 441/ ATTORNEY Patented Feb. 18, 1913.

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We; MW fi'q/ ATTORN EY H. W. DYER.

REVOLVING DOOR.

APPLICATION IILEI) D30. 4, 1907.

. UNITED STATES PATENT OFFICE.

HARRY W. IiYER, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO THE DYER REVOLV ING DOOR COMPANY, A CORPORATION OF ARIZONA.

Specification of Letters Patent. Application filed December 4, 1907. Serial No.

REVOLVING DOOR.

My, invention relates to revolving doors of the type in which the door comprises aplurality of wings extending radially or substantially so, and in which the wings are hinged with respect'to each other, so that they may be folded, thus affording a free passageway whenever desired, and in which the door when folded may be moved to one side of the passage, if desired, so as to leave the sameentirely free for substantially its entire width.

My invention has for-its object the provision of improved means for supporting and hinging the wings with respect to each other and for bracing and locking the wings when in .open position; also improved means for r'otatably supporting the door and for carrying the door from its operative or rotary positionto one side, so as to leave the passageway free and for returning the door to its operative position; also the provision of meansfor retarding the rotary movement of the door, so as to prevent it from attaining a dangerous velocity when rotating; and finally the provision of improved details of construction, as hereinafter set forth and claimed. a

Reference is hereby made to the accompanying drawings, of which,

Figure 1 is a horizontal section on line 11 of Fig. 2. Fig. 2 is a front elevation partly in section on line 2-2 of Fig. 1, and showing a door constructed in accordance with my invention and ad acent parts of the structure of the doorway to which the door is applied. Fig. 3 is an enlarged section on line a -3 of Fig.1. Fig. 4. is a detail-side view of one of the bearings which support the rotary screw shaft for imparting a' movement of translation to the door. Fig. 5 is a similar view of the carriage which moves upon said screw shaft and upon which the door is rotatably supported. Fig. 6 is a detail section of the shoe for centering the lower end of the door. supporting tube. Figs. 7 and 8 are detail views of the mechanism for operating the central rod by which ing the door. Fig. 12

the door may be locked against translation. Figs. 9 and 10 are detail views showing the vertical and horizontal edges of the radial wings with the weather strips applied thereto. Fig. 11 is a detail section illustrating a modification in the arrangement of the rotary screw shaft for supporting and movis a detail face view of the means for locking the screw shaft against rotation.

In all the views, designated by the same reference characters.

The door shown comprises a body 1 formed with a pair of oppositely disposed wings 2, 2 and rotatably supported by a central axis in the form of a sectional tube 3. .Embedded within the body 1 of the door are a series of blocks 4, preferably of metal, and within said blocks are threaded the ends of the sections of the tube 3, whereby theweight of thedoor is applied to the said tube, and through the tube to the block 5which forms a part of the roller bearing 6 carried by the carriage 7. The carriage 7 is mounted upon a horizontal shaft 8 formed with a screw thread which engages a corresponding female screw formed within the upwardly projecting arms 9 of the carriage 7, so

that a rotary movement of the shaft 8 will impart a movement of translation to the carriage 7 and the door which is carried there by. The shaft 8 may be either horizontal as shown in Fig. 3, or slightly inclined, as shown in Fi 11. In either case, it is mounted in suitable bearings 10, which may be of any suitable type, such as plain or roller bearings, said bearings being mounted upon a suitable support 11. Any suitable means may be provided for causing a rotation of the shaft 8, and I have shown for this purpose a bevel gear 12 mounted on said shaft and'meshing with a similar gear 13 secured to a vertical shaft 14 journaled in a bearing 15, and provided at its lower end with a bevel gear 16 which meshes with a similar gear 17 mounted on a horizontal shaft 18 and adapted to be operated by a crank 19.

Looking means for holding the shaft 8 against rotation are preferably provided, and may be of any suitable form. I have shown for this purpose a dog 60, pivoted at 61 and adapted to be brought into or out of engagement with a ratchet 62 fixed to the shaft 18.* The locking of the shaft 8 Patented Feb. 18,1913.

corresponding parts are hinge members are preferably formed 1 piece 32 bottom of the slot 30 and inoperative position by upper and will hold the door against translation when in any position, as, for instance, when folded and at one side of the support 11 is provided with a slot or openin 20 through tu e 3 passes. Upon the section of t e tube 3 and between the blocks 4 are placed hinge members21 which rotate freely upon y desired be used, These somewhatlike the letter Z, as shown in Fig. 1, whereby the door, when. the wings are fol ed, occupies very little space, being substantially .fiat, as indicated in dotted lines in said figure. The wings may be locked in this position by any suitable means such as a vertical bolt'64 carried by one wing which will engage a staple 63'carried' by the adjacent wing.

In order to lock the wings together and brace the same when inoperative position, hooks 23 are provided, one end of which is formed with an eye 23 which enga s a staple 24- secured to the wing 2, an the other end of the hook engages a staple 25 carried by the wing 22.

The door supporting tube 3 is locked in its normal or operative'position, and in its lower 1 Means tube 3 and carry wings 22; number of hinge. members may three being shown in the drawing.

vertically movable rods 26 and 26'. are provided for raising said rods when desired, and for locking the same in either'position. In Fig. 3, the upper rod is shown in its elevated position, the upper end occu ying a. socket 27 formed in the shaft 8, an the lower rod 'is in its lowered position, so that the end of the hollow shoe 28 within whi ch the end of said rod is threaded, engages a socket 50 in the block 29 which is sunkin the floor. The bottom of the shoe 28 is preferably formed with a stud for engaging said socket 50, as shown. The door therefore cannot be moved from either its operative or inoperative position, unless the rods 26 and 26 be moved so as to withdraw the ends longitudinally the sockets formed reof the same from spectively in the means for accomplishing this result is illustrated in Figs. 3, 7 and 8, and comprises a recess 01'' slot.30 formed withinthe body 1 andia similar but smaller recess 31 formed within the block 4; Within therod 26 is set a piece 32 which extends thr'ough'the slots .30- and 31. The outer end of said is forked, lever or hand member 33 is hinged by a knuckle joint, so that when in its vertical position, it occupies the slot 30 and lies entirely within the body lot the door.

the position shown in full lines in Fig. 8, the lower end of the member 33 rests upon the thereby supports doorway. The

which the door sup ortmg' and lowering theshaft 8 and block 29. The a been to and'within the same, a

the rod-326 When the member 33 is brought out into a horizontal position. it serves as a handle for lifting the rod 26, and when in its elevatedposition, (shown in dotted lines) it holds the rod 26 in an elevated position, by reason of the lower end of the member 33'resting upon shoulders 34 formed in the side walls of the slot 30. The construction of the device for raising and lowering the upper rod 26 is identical with the'structure which has been described for the operation of the lower rod 26.@

In order that the door when in its operative position may not attain such speed as to bedangerous to a person attempting to enter the building, a'retarding device may be appliedio the doerway, or the doorway itself maybe so formed as to retard the door. InFig. 1,the vertical member 40 of the door casing is shown as being curved in an erect a circle whose center is concentrio with the axis of the door, and a strip H is applied to the inner surface thereof in such position, that, as thevdoor rotates, the weather strip 42 carried by the edge of each of the radial wings will the said strip and thereby retard the door.

If desired, additional strips similar to 41' are preferably at the same distance from weather strips-'42 when unrestrained. On account of the elliptical form of the casing,- however, the distance from its inner surface to the axis of the'door from its edges toward lts center,

y weather strip withrespect to said casing,

and thereadually diminishes frictionally engage the center otthe door as the edges of the causes africtional engagement of the said resistance increas1ng ,-towardfthe centhendecreasing from ter of the casing an dge of the the center 7 toward the rear e casing. v

In the structure of Fig. 11, the screw shaft 8 which supportsthe carriage 7 from which thed'ocr is'susp'ended, is inclined downward from right to-left, so

ded and withdrawn from engagement with the hold ing sockets, the weight th'e'shaft 8 to" rotate, and the door will caused to move by gravity from the extreme right handpo'sition to its extreme left hand position. Thedegree of inclination of said shaft is exaggerated. in the drawlng. With a heavy door and a readily movable screw shaft-{1t may be very slight. In order to cause the door toireturn to its initial position, the shaft 8- will be. rotated by any suitthat when the door has the locking rods 26 and. 26

of the door willcause able means such as the chain 44 which passes over the sprocket 45 carried by the end of the shaft 8. After the door has reached its initial or operative position, the locking rods 26 and 26 may be operated to hold the same against translation.

Obviously the inclination of the shaft 8 may be reversed so that it will slope downward from left to right. In this case, in order to move the door from operative position to one side of the doorway, it is necessary to impart rotation tov the shaft 8, and suitable locking means are provided for holding the door in its inoperative position, such as sockets similar to the sockets 27 and 50. In this structure, the inclination of the shaft 8 will be sufiicient to cause the door to travel by gravity from its inoperative to its operative position, whenever the locking rods 26 and 26 are Withdrawn from their sockets.

While I have shown the carriage 7 supported by the screw 8, and prefer this construction, it will be obvious that the carriage may be provided with rollers running on a fixed support and the screw 8 used only as a translating device for moving the carriage without supporting it.

Having now described my invention, what I claim is:

1. A door comprising radial wings, a carriage upon which said door is rotatably mounted and an inclined rotary screw upon which said carriage is supported, the inclination of said screw being sufficient to allow the carriage to descend by gravity.

2. A revolving door comprising radial wings, a carriage, means for rotatably supporting said door upon said carriage, an in- 'ture, in the presence of two clined rotary screw upon which said carriage is supported, the inclination of said screw being sufiicient to allow said carriage to descend by gravity, and means for locking said carriage in its elevated position.

3. A revolvin door comprising a central supporting mem er 3, wings rigid therewith, a Z-shaped hinge member rotatable thereon, and radial wings 22 secured to the opposite ends of said hinged member.

4. A revolving door comprising a body 1 having wings 2 rigid therewith, Z-shaped hinge members 21 rotatable with respect to said body, and wings 22 secured to opposite ends of said hinge members.

5. A revolving door comprising vertical tube sections, blocks of increased cross section secured to said tube sections, a plurality of hinge members applied to and rotatable upon said tube sections immediately above said blocks so as to be supported thereby, and a win secured to said hinge members.

6. A revolving door comprising vertical tube sections, blocks of increased cross section secured to said tube sections, a body recessed so as to receive and rest upon some of said blocks, wings rigid with said body, hinge members applied to said tubes above others of said blocks so as to be supported thereby, and a wing secured to said hinge members.

In witness whereof, I subscribe my signawitnesses.

HARRY w. DYER. 

